Lines Matching +full:non +full:- +full:prefetchable
1 // SPDX-License-Identifier: GPL-2.0
32 struct resource *res = dev->resource + resno; in pci_std_update_resource()
34 /* Per SR-IOV spec 3.4.1.11, VF BARs are RO zero */ in pci_std_update_resource()
35 if (dev->is_virtfn) in pci_std_update_resource()
42 if (!res->flags) in pci_std_update_resource()
45 if (res->flags & IORESOURCE_UNSET) in pci_std_update_resource()
49 * Ignore non-moveable resources. This might be legacy resources for in pci_std_update_resource()
53 if (res->flags & IORESOURCE_PCI_FIXED) in pci_std_update_resource()
56 pcibios_resource_to_bus(dev->bus, ®ion, res); in pci_std_update_resource()
59 if (res->flags & IORESOURCE_IO) { in pci_std_update_resource()
61 new |= res->flags & ~PCI_BASE_ADDRESS_IO_MASK; in pci_std_update_resource()
66 new |= res->flags & ~PCI_BASE_ADDRESS_MEM_MASK; in pci_std_update_resource()
79 if (!(res->flags & IORESOURCE_ROM_ENABLE)) in pci_std_update_resource()
82 reg = dev->rom_base_reg; in pci_std_update_resource()
88 * We can't update a 64-bit BAR atomically, so when possible, in pci_std_update_resource()
89 * disable decoding so that a half-updated BAR won't conflict in pci_std_update_resource()
92 disable = (res->flags & IORESOURCE_MEM_64) && !dev->mmio_always_on; in pci_std_update_resource()
107 if (res->flags & IORESOURCE_MEM_64) { in pci_std_update_resource()
133 struct resource *res = &dev->resource[resource]; in pci_claim_resource()
136 if (res->flags & IORESOURCE_UNSET) { in pci_claim_resource()
139 return -EINVAL; in pci_claim_resource()
147 if (res->flags & IORESOURCE_ROM_SHADOW) in pci_claim_resource()
154 res->flags |= IORESOURCE_UNSET; in pci_claim_resource()
155 return -EINVAL; in pci_claim_resource()
161 resource, res, conflict->name, conflict); in pci_claim_resource()
162 res->flags |= IORESOURCE_UNSET; in pci_claim_resource()
163 return -EBUSY; in pci_claim_resource()
175 /* Prefetchable MMIO Base/Limit */ in pci_disable_bridge_window()
186 * Can be over-ridden by architecture specific code that implements
203 return -ENOMEM; in pci_revert_fw_address()
205 start = res->start; in pci_revert_fw_address()
206 end = res->end; in pci_revert_fw_address()
207 res->start = fw_addr; in pci_revert_fw_address()
208 res->end = res->start + size - 1; in pci_revert_fw_address()
209 res->flags &= ~IORESOURCE_UNSET; in pci_revert_fw_address()
213 if (res->flags & IORESOURCE_IO) in pci_revert_fw_address()
224 resno, res, conflict->name, conflict); in pci_revert_fw_address()
225 res->start = start; in pci_revert_fw_address()
226 res->end = end; in pci_revert_fw_address()
227 res->flags |= IORESOURCE_UNSET; in pci_revert_fw_address()
228 return -EBUSY; in pci_revert_fw_address()
243 return res->start; in pcibios_align_resource()
249 struct resource *res = dev->resource + resno; in __pci_assign_resource()
253 min = (res->flags & IORESOURCE_IO) ? PCIBIOS_MIN_IO : PCIBIOS_MIN_MEM; in __pci_assign_resource()
256 * First, try exact prefetching match. Even if a 64-bit in __pci_assign_resource()
257 * prefetchable bridge window is below 4GB, we can't put a 32-bit in __pci_assign_resource()
258 * prefetchable resource in it because pbus_size_mem() assumes a in __pci_assign_resource()
259 * 64-bit window will contain no 32-bit resources. If we assign in __pci_assign_resource()
269 * If the prefetchable window is only 32 bits wide, we can put in __pci_assign_resource()
270 * 64-bit prefetchable resources in it. in __pci_assign_resource()
272 if ((res->flags & (IORESOURCE_PREFETCH | IORESOURCE_MEM_64)) == in __pci_assign_resource()
283 * in a non-prefetchable window. If this resource is 32 bits and in __pci_assign_resource()
284 * non-prefetchable, the first call already tried the only possibility in __pci_assign_resource()
287 if (res->flags & (IORESOURCE_PREFETCH | IORESOURCE_MEM_64)) in __pci_assign_resource()
300 bus = dev->bus; in _pci_assign_resource()
302 if (!bus->parent || !bus->self->transparent) in _pci_assign_resource()
304 bus = bus->parent; in _pci_assign_resource()
312 struct resource *res = dev->resource + resno; in pci_assign_resource()
316 if (res->flags & IORESOURCE_PCI_FIXED) in pci_assign_resource()
319 res->flags |= IORESOURCE_UNSET; in pci_assign_resource()
324 return -EINVAL; in pci_assign_resource()
345 res->flags &= ~IORESOURCE_UNSET; in pci_assign_resource()
346 res->flags &= ~IORESOURCE_STARTALIGN; in pci_assign_resource()
358 struct resource *res = dev->resource + resno; in pci_reassign_resource()
363 if (res->flags & IORESOURCE_PCI_FIXED) in pci_reassign_resource()
366 flags = res->flags; in pci_reassign_resource()
367 res->flags |= IORESOURCE_UNSET; in pci_reassign_resource()
368 if (!res->parent) { in pci_reassign_resource()
371 return -EINVAL; in pci_reassign_resource()
378 res->flags = flags; in pci_reassign_resource()
384 res->flags &= ~IORESOURCE_UNSET; in pci_reassign_resource()
385 res->flags &= ~IORESOURCE_STARTALIGN; in pci_reassign_resource()
396 struct resource *res = dev->resource + resno; in pci_release_resource()
400 if (!res->parent) in pci_release_resource()
404 res->end = resource_size(res) - 1; in pci_release_resource()
405 res->start = 0; in pci_release_resource()
406 res->flags |= IORESOURCE_UNSET; in pci_release_resource()
412 struct resource *res = dev->resource + resno; in pci_resize_resource()
418 if (!(res->flags & IORESOURCE_UNSET)) in pci_resize_resource()
419 return -EBUSY; in pci_resize_resource()
423 return -EBUSY; in pci_resize_resource()
427 return -ENOTSUPP; in pci_resize_resource()
430 return -EINVAL; in pci_resize_resource()
440 res->end = res->start + pci_rebar_size_to_bytes(size) - 1; in pci_resize_resource()
443 if (dev->bus->self) { in pci_resize_resource()
444 ret = pci_reassign_bridge_resources(dev->bus->self, res->flags); in pci_resize_resource()
452 res->end = res->start + pci_rebar_size_to_bytes(old) - 1; in pci_resize_resource()
470 r = &dev->resource[i]; in pci_enable_resources()
472 if (!(r->flags & (IORESOURCE_IO | IORESOURCE_MEM))) in pci_enable_resources()
475 (!(r->flags & IORESOURCE_ROM_ENABLE))) in pci_enable_resources()
478 if (r->flags & IORESOURCE_UNSET) { in pci_enable_resources()
481 return -EINVAL; in pci_enable_resources()
484 if (!r->parent) { in pci_enable_resources()
487 return -EINVAL; in pci_enable_resources()
490 if (r->flags & IORESOURCE_IO) in pci_enable_resources()
492 if (r->flags & IORESOURCE_MEM) in pci_enable_resources()
497 pci_info(dev, "enabling device (%04x -> %04x)\n", old_cmd, cmd); in pci_enable_resources()